Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Andreas Komnik"'
Autor:
Henning Soller, Andreas Komnik
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 3, Iss 1, Pp 493-500 (2012)
Background: Splitting of Cooper pairs has recently been realized experimentally for s-wave Cooper pairs. A split Cooper pair represents an entangled two-electron pair state, which has possible application in on-chip quantum computation. Likewise the
Externí odkaz:
https://doaj.org/article/7fcb4b5f462b4fa492bfde49b1bcb62c
Publikováno v:
Physica: B: condensed matter
We analyze the dynamical response of a ultracold binary gas mixture in presence of strong boson-fermion couplings. Mapping the problem onto that of the optical response of a metal/semiconductor electronic degrees of freedom to electromagnetic perturb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4027dab957927cf35e92ee3daa23fcb
https://doi.org/10.1016/j.physb.2014.07.075
https://doi.org/10.1016/j.physb.2014.07.075
Autor:
Andreas Komnik, H. Soller
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 63:99-104
We analyse the full counting statistics of charge transfer through a Majorana bound state coupled to an STM tip and show how they can be used for an unambiguous identification of the bound state at the end of the wire. Additionally, we show how to ge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a80ab06cd822c96bf09601597d81779
https://doi.org/10.1016/j.physe.2014.05.020
https://doi.org/10.1016/j.physe.2014.05.020
Autor:
S. Heinze, Andreas Komnik
We present a further development of methods for analytical calculations of Green's functions of lattice fermions based on recurrence relations. Applying it to tight-binding systems and topological superconductors in different dimensions we obtain a n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32dcc40112cc6b6ba3bf8d5d62d3429d
Autor:
Kai Ji, Andreas Komnik
Publikováno v:
PHYSICAL REVIEW A
We study the dynamical response of ultracold fermion-boson mixture in the Bogoliubov regime, where the interactions between fermionic impurities and bosonic excitations (phonons) are described by an effective Frohlich model under the Bogoliubov appro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af9f1dba227c848250fc88f498a001d1
https://doi.org/10.1103/physreva.94.023635
https://doi.org/10.1103/physreva.94.023635
Autor:
Fred Jendrzejewski, T. Rentrop, A. Trautmann, Andreas Komnik, Markus K. Oberthaler, F. A. Olivares
Publikováno v:
Physical Review X, Vol 6, Iss 4, p 041041 (2016)
This thesis reports on the implementation of the Frohlich Hamiltonian in an ultracold atomic mixture. To this end, impurity atoms are immersed into a macroscopic Bose-Einstein condensate (BEC). The impurities are tightly trapped in one direction by a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69a4f812e3d3c1d53b6d352a328676e1
http://arxiv.org/abs/1605.01874
http://arxiv.org/abs/1605.01874
Autor:
H. Soller, Andreas Komnik
Publikováno v:
Beilstein Journal of Nanotechnology
Beilstein Journal of Nanotechnology, Vol 3, Iss 1, Pp 493-500 (2012)
Beilstein Journal of Nanotechnology, Vol 3, Iss 1, Pp 493-500 (2012)
Splitting of Cooper pairs has recently been realized experimentally for s-wave Cooper pairs. A split Cooper pair represents an entangled two-electron pair state which has possible application in on-chip quantum computation. Likewise the spin-activity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da2c0e75e78491fca858b51572fac9f1
https://doi.org/10.3762/bjnano.3.56
https://doi.org/10.3762/bjnano.3.56
Autor:
Andreas Komnik, H. Soller
Publikováno v:
The European Physical Journal D. 63:3-8
We analyze the full counting statistics (FCS) of a single-site quantum dot coupled to multiple metallic electrodes in the normal state and a superconductor for arbitrary transmission. We present an analytical solution of the problem taking into accou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f1d89ed551e4ad59124d0fc47776733
https://doi.org/10.1140/epjd/e2010-00256-7
https://doi.org/10.1140/epjd/e2010-00256-7
Autor:
Levan Chotorlishvili, Arthur Ernst, S. Stagraczyński, Vitalii K. Dugaev, Andreas Komnik, Jamal Berakdar, Chenglong Jia
A key feature of topological insulators is the robustness of the electron energy spectrum. At a surface of a topological insulator, Dirac point is protected by the characteristic symmetry of the system. The breaking of the symmetry opens a gap in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6fbd52da8b454c3c35384538390cb626
Autor:
Andreas Komnik, Michael Thorwart
We study the impact of a time-dependent external driving of the lattice phonons in a minimal model of a BCS superconductor. Upon evaluating the driving-induced vertex corrections of the phonon-mediated electron-electron interaction, we show that para
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7dab3d0d10f545d11465e1905679085e